Title |
Inter-radiologist agreement using Society of Abdominal Radiology-American Gastroenterological Association (SAR-AGA) consensus nomenclature for reporting CT and MR enterography in children and young adults with small bowel Crohn disease
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Published in |
Abdominal Radiology, August 2018
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DOI | 10.1007/s00261-018-1743-5 |
Pubmed ID | |
Authors |
Mitchell A. Rees, Jonathan R. Dillman, Christopher G. Anton, Mantosh S. Rattan, Ethan A. Smith, Alexander J. Towbin, Bin Zhang, Andrew T. Trout |
Abstract |
To assess inter-radiologist agreement using the Society of Abdominal Radiology-American Gastroenterological Association (SAR-AGA) consensus recommendations for reporting CT/MR enterography exams in pediatric and young adult small bowel Crohn disease (CD). Institutional review board approval was obtained for this HIPAA-compliant retrospective investigation; the requirement for informed consent was waived. 25 CT and 25 MR enterography exams performed in children and young adults (age range: 6-23 years) between January 2015 and April 2017 with a distribution of ileal CD severity (phenotype) were identified: normal or chronic CD without active inflammation (40%), active inflammatory CD (20%), stricturing CD (20%), and penetrating CD (20%). Five fellowship-trained pediatric radiologists, blinded to one another, documented key imaging findings and standardized impressions based on SAR-AGA consensus recommendations. Inter-radiologist agreement was evaluated using Fleiss' multi-rater kappa statistic (κ) with 95% confidence intervals (CI). Inter-radiologist agreement was moderate for all key imaging findings except presence of ulcerations (κ 0.37 [95% CI 0.28-0.46]) and sacculations (κ 0.31 [95% CI 0.23-0.40]). Agreement for standardized impressions was substantial for stricturing disease (κ 0.79 [95% CI 0.70-0.87]) and moderate for presence of inflammation (κ 0.49 [95% CI 0.44-0.56]) and penetrating disease (κ 0.58 [95% CI 0.49-0.67]). No significant difference in agreement was found between CT and MRI. Agreement among five pediatric radiologists was moderate to substantial for SAR-AGA standardized impressions and fair to moderate for key imaging findings of pediatric and young adult CD. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 6 | 55% |
Spain | 1 | 9% |
Unknown | 4 | 36% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 4 | 36% |
Scientists | 4 | 36% |
Practitioners (doctors, other healthcare professionals) | 3 | 27% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 37 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 5 | 14% |
Student > Master | 5 | 14% |
Researcher | 4 | 11% |
Other | 4 | 11% |
Professor > Associate Professor | 2 | 5% |
Other | 5 | 14% |
Unknown | 12 | 32% |
Readers by discipline | Count | As % |
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Medicine and Dentistry | 14 | 38% |
Nursing and Health Professions | 2 | 5% |
Computer Science | 2 | 5% |
Biochemistry, Genetics and Molecular Biology | 1 | 3% |
Agricultural and Biological Sciences | 1 | 3% |
Other | 4 | 11% |
Unknown | 13 | 35% |